Gaseous-fuel mixer.



C. ESCHWEI.

GASEOUS FUEL MIXER.

APPLICATION YLED oo'r.29,1913.

1,1 19,253 Patendrnec, 1,1914.

d Eto 1101A rially reducing yso UNITED STATES "PATENT CHARLES ESCHWEI, F .PIAG

.ASSIGNIENTS, T0

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New Yoan, Assieme, er meer Nn :msm: mvnr. raonuors coman, me., A conroaarzon or Naw You cassone-Finir. u'rxiin.

1,1 19,259. Indication 0f Letter retent- Patented Dec. 1, 1914.

` applicativa mea october as, isis. man no. name. Tov 'whom it ma concern: bottom .with a lateral'flan 16 to conform it known that I, CHAnnEs EscHwEi, to the size of various mani old flanges. The

a citizen of the UnitedsStates of America an resident of Copia e, in the countypf Su olk and State of ew York, have invented certain new and 'useful Improvements in vGaseous-Fuel Mixers, of which the followin is a specification. U

This invention yrelates to mixing devices for .fuel for internal combustion, engines:

The object of the invention-is to provide adevice which will very thoroughly mix the vaporized liquid combustible with the air which is also admitted, so that the mixture is su plied in a thoroughly kand uniformly mix condition for combustion, the mixing being so thorou h in fact that it is possible not only to empoy the customary gasolene, but even to employ a liquid fuel containing a large -percenta e of kerosene, thus matet e cost of operation of the motor.

The mixing device comprises essentially a wire helix which, by suitable sup orting means, is so interposed in the path o the incoming va or and air fuel mixture as .to impart to t e same a whirling motion, while simultaneously breaking up the incoming stream.

In the accompanying drawing, Figure 1 is a vertical centra section' of a vaporizer embodying the invention, 2 is a plan o f the device shown Vin Fig. 1, ig. 3 is a horizontal section on line 3--3 of Fig. 1, Fig. 4 is a vertical section of a modified form of the device, and Fifg. 5 is a horizontal section'on line 5 5 o Fig. 4.

Similar reference characters indicate'corres onding parts throughout the figures.

' he vaporizer shown in Figs. 1, 2 and 3 comprises a helix of wire, such for instance as brass wire, which is coiled upon itself, also in the form of a helix, around a center post 11, the lower end of which supports` a perforated plate 12 and the upper end ofmwhich is provided with an internal screw-threadengaged by a screw 13, whereby the post i`s`attached at its Yu perend to the to perforated late 14 o a cyl1n drical shel 15 made o brass or vanv other suitable material. The plate 12 is oose at itsfedge in theshell. The shell is of suitable size to fit within the intake manifold of an internal cymbustion engine to which the device isto be applied, and is provided at its `the shel rent of wire helix may have one or more turns upon itself. In Fig. 1 one turn only is shown and the overlapping end of the wire is soldered at 17 and 18 to the underl ing end of the helix, and the inner end ofy the helix is it self soldered at 19 to the post 11 near the lower end of the latter. The helix, lower plate 12 and ost 11 form thereby one connected who e which maybe convenientlI withdrawn from the o enend of when the screw 13 is re eased.

The mixture of air and vapor fuel from the carbureter that enters the vaporizer at its open end is broken up by the late`12 into a plurality of small sprays an enters the space in the shell between'thetwo plates 12' and 14; in said space it encounters the helically wound helix of wire and enters into theinterior of said helix through the spaces between the c'onvolutions of the same; in its passage into the helix it is broken additionally to the breaking which it receives in assing through the plate 12. The circular orm ofrthe convolutionsof the helix imparts to the inflowing mixture a whirling motion, that is to say, the streams of mixture are uided by the` individual convolutions of t e helix during their entrance into the latter in a circular direction, and when they have entered the helix they have this circular motion in a considerable degree, said motion being also a rogressive one lengthwise of'the helix, fol owing the course of the wire composing thehelix. The mixture is thus compelled to travelv while whirli in itself helically upward through the herlfmlly wound wire helix. Thus, in concurrence with the helically moving curgas whirling in itself, there is a con sta-nt displacement and change in the particles of gas being subjected to that action. These combined movements produced in the gaseous4v mixture cause such a thorough rearrangement and redistribution of the articles thereof that the fluid fuel issues the plate 14 infan exceedingly thoroughly "mixed and highly explosive condition; in-

deed, sothoroiigh is the breaking up and re` mixin of thevapor accomplished, that it is possib e to make use asfuelof substances not available for use as fuel insconnectiorifwith the carbureters and mixing 'ees heretoseno with gasolcnc oi the ordinaryl ion'unerrial quality new in use has been i'oluul pracl ti "lue with mixers constriurtml according 'to this invention, wherein' lle cust nl operation of the motor largely reduced over the use of gasolenc alone af: was heretofore required.

In the inodilieatif'v; fi-.own in Figs. 4 and 5. the helix 2 stead of being arranged in iie.ieal shape, is arranged spirally for the purpose of reducingr the height or thickness of the device as a Whole. At suitable points 225 the helix is soldered upon itself, so that the spiral form is preserved when the helix removed from the shell. The 'whirling 'motion is attained when the heliX is arranged as a flat spiral. but in order to further increase this whirling motion the spiral, at its center, is depressed., as shown at 23. This depression is maintained by the natural spring action of the helix which, lacing slightly larger than the internal di- :uneter of the shell 21, causes the center portion of the spiral to be depressed, as shown in Fig. ,kagainst a convex perforated plate 25 which rictionzally engages the shell 2l, and thereby retains the spirallyY Wound helix in place. The gaseous mixture enters this device through the plate '125. and all portions ofvsaid mixture encounter in their passage the upwardly winding spi rally arranged helix. They are thereby given the whirlingr motion and the travel along the helix which is produced, as before described. ley the de- .ices ol Figs. l., and 5S, together with the constant exchange of particles produced. by the direct flow of the mixture from the invtake plate 25 to the outlet plate :El across the helix. This form ol' the invention is of special advants'ige where the available space in the intake manifold of the motor is insullicient to receive the deeper form of the device shown iu Figs. lf2 and 3.

By the use of the i'm entier. the consumption of gasolene is largely reduced and all tlf.rwell-l-nown good results attainable only lr.' a more thorough mixture of the. fuel, namely. netter combustion, less noise and vibration, less carbonizing of the cylinders, and more power and speed from the motor, are attained.

il claim:

A gaseous fuel mixer for internal combustion engines, comprising a casing having a perforated top and bottoni, and a coil of wire having its eonmlutions closely adjacent. to each other, arranged Within the casing and between its top and bottoni, said convoA lutions being arranged in a circular manner between said top and bottom plates, and being at right angles to the top and bottom plates.

2. A gaseous fuel mixer for internal combustion engines. comprising a perforated top plate, a perforated bottom plate, an inclosing support for said top and bottom plates, and a coil ct' wire having its convolutions closely adjacent to each other, said convolutions: being arranged in a circular manner in respect to the center point of the top and bottom plates, and having the largest lnumbei' of the separate convolutions at righi angles to the top and botton plates.

3. A gaseous fuel mixer for internal comliusion mgines. comprising a casing hav- .g its iop and bottom provided `with a` pluraliv ol' perfoi-ations and a coil of Wire harinay a plurali@Y el (v nvolutions arranged rios-.ely adjacent to each other and arranged l a circula:- iuanner around lthe center of le plates. each of said roniolutions being :arranged in a plane vertical to the. top and. bottoni ol' the easing.

ln testimony that Y.l claim the foregoing my invention. l have signed mf, name in presi-nce ot Iwo subscribing witfiexses.

(Lilli ll LES RSCIIVEI.

Vx'irnessia H. (lorena F. lloras. 

